Finding the Fourth Proportional to 261,385.95, 391,447.39 and 148,724.88
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Solution
The fourth proportional to 261,385.95, 391,447.39 and 148,724.88 is: 222,727.99
Step by Step Solution
- Step 1: Write the proportion equation
261,385.95 : 391,447.39 = 148,724.88 : x - Step 2: Convert to fraction form
261,385.95/391,447.39 = 148,724.88/x - Step 3: Cross multiply
261,385.95x = 391,447.39 × 148,724.88 - Step 4: Simplify right side
261,385.95x = 58,217,966,104.06 - Step 5: Solve for x
x = 58,217,966,104.06/261,385.95 - Step 6: Final answer
x = 222,727.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.